完成句子（每题1分, 满分5分）
小题1:All the other seemed to know each other and _____________________________
(我感到自己被冷落了)
小题2:_______________________________(值得赞扬的是)the four countries do work together in some areas, but they still have very different institutions.
小题3:Nowadays many farmers ____________________________________________ (想要脱离) farming and make a living in cities.
小题4:Electric trains _________________________________________________(取代)steam trains in England several decades age
小题5:It’s very dangerous ____________________________________________ (暴露于)these virus without any protection
小题1:I felt left out
小题2: To their credit
小题3: want to break away from
小题4:took the place of
小题5: to be exposed to
题目分析：
小题1:I felt left out 考察系表结构。本句中的系动词feel后面的过去分词构成的表语left out。表示感觉被冷落了。
小题2: To their credit 固定搭配to one’s credit值得赞扬的是
小题3:want to break away from 固定搭配break away from…脱离….；动词break的短语是考察的重点内容，如break down，break up等。
小题4:took the place of 考察固定搭配take the place of代替…的位置。
小题5:to be exposed to 本句中的不定式是真正的主语，前面的it是形式主语。根据句意说明被暴露在…之中，使用不定式的被动语态的形式。
点评：做这类题，不但要选择正确意义的词、词组及句型，还要根据具体语法和语境，选择适当的时态、语态及使用正确的词形。